CN103723098B - Electrical storage device - Google Patents

Electrical storage device Download PDF

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Publication number
CN103723098B
CN103723098B CN201310466821.XA CN201310466821A CN103723098B CN 103723098 B CN103723098 B CN 103723098B CN 201310466821 A CN201310466821 A CN 201310466821A CN 103723098 B CN103723098 B CN 103723098B
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China
Prior art keywords
state
power consumption
control unit
battery
engine
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CN201310466821.XA
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CN103723098A (en
Inventor
中本武志
白石刚之
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GS Yuasa International Ltd
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GS Yuasa International Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/13—Maintaining the SoC within a determined range
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/15—Preventing overcharging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The electrical storage devices itself such as a kind of electrical storage device of present invention offer, battery can just suppress itself charge volume independent of external system and be reduced to fail to start engine.BMS（13）Judging battery pack（11）Battery（C）Battery voltage value below power saving threshold value in the case of, by relay（12）Off-state is switched to from closure state, the electric power for thus suppressing charge storage element consumes because of electric loading.Also, BMS（13）In the case where judging above-mentioned battery voltage value below power saving threshold value, by BMS（13）Power consumption state the deep sleep mode fewer than sleep pattern power consumption is switched to from sleep pattern, thus suppress BMS（13）Consume battery pack（11）Electric power.

Description

Electrical storage device
Technical field
The present invention relates to a kind of electrical storage device for suppressing the electrical storage device power consumption when stopping powering to electric loading.
Background technology
For example, battery is equipped with automobile, the battery is sometimes when starting engine in order to be powered to starter Also serve as being used to the power supply that various mobile units are powered.Here, in the engine operation process of traveling etc., battery Charged using generator.On the other hand, during engine stop, battery is due to being not charged and to mobile unit Power supply, and influenceed by dark current so that charged state reduces, it is impossible to engine is started, it is so-called so as to occur Battery short of electricity.
Therefore, all the time, there is such a technology：When vehicle parking is placed, when battery tension drops to a certain rule When below definite value, the power source path of the mobile unit power supply to consuming dark current is cut off（With reference to patent document 1）.
Patent document 1：（Japan）JP 2006-327487 publications
However, in the prior art, the outside of battery is arranged on for cutting off the relay of power source path of power supply, The system monitoring battery tension on automobile primary side simultaneously cuts off the relay according to its monitoring result, i.e., in the prior art, uses The structure for carrying out block system relay depends on the external system of battery, so by must for example between battery and external system Such restriction of communication agency etc. must be set, so as to inconvenience be present.
The content of the invention
A kind of technology of disclosure, the electrical storage devices such as battery itself can be made just to press down independent of external system Make itself charge volume and be reduced to fail to start engine.
Electrical storage device disclosed in the present application has：The lead-out terminal that is electrically connected with the equipment side with engine, electric power storage Element, the monitoring device with the test section for detecting the changing value corresponding with the charge volume of the charge storage element and control unit, The relay being arranged between the lead-out terminal and the charge storage element, the control unit judge what the test section detected Whether changing value starts the disconnection threshold value after setting is added on lower threshold for starting the engine of the engine Hereinafter, when being judged as that the changing value is below the disconnection threshold value, perform and switch the relay from closure state For the disconnection process of off-state.
It should be noted that the present invention can by electrical storage device, the electrical control method of charge storage element, for realization State the computer program of the function of method or apparatus and store the various modes such as the storage medium of above computer program to realize.
According to invention disclosed herein, electrical storage device itself can may refrain from itself charging independent of external system Amount is reduced to fail to start engine.
Brief description of the drawings
Fig. 1 is the structure chart of battery and the mobile unit of an embodiment etc.；
Fig. 2A is the flow chart for representing Electric control processing；
Fig. 2 B are the flow charts for representing start up process；
Fig. 3 is the curve map for the SOC-OCV characteristics for representing ferric phosphate Li-like ions battery.
Description of reference numerals
1 battery；2 engines；3 starters；4ECU；5 mobile units；11 battery packs；12 relays；13BMS；21 voltages Detect circuit；22 control units；22A CPU；23 firing switcies；24 communication units.
Embodiment
（The overview of present embodiment）
The electrical storage device of present embodiment has：The lead-out terminal that is electrically connected with the equipment side with engine, electric power storage member Part, the monitoring device with the test section for detecting changing value corresponding with the charge volume of the charge storage element and control unit, set Relay between the lead-out terminal and the charge storage element, the control unit judge the change that the test section detects Value whether for start the engine of the engine start lower threshold on be added setting after disconnection threshold value below, In the case where judging the changing value below the disconnection threshold value, perform and switch to the relay from closure state The disconnection process of off-state.
The electrical storage device of present embodiment has relay, is being judged as changing value corresponding with the charge volume of charge storage element In the case of below disconnection threshold value, relay is switched into off-state from closure state.Thus, electrical storage device itself energy Enough systems independent of outside may refrain from the charge volume of itself and be reduced to fail to start engine.
In above-mentioned electrical storage device, the control unit can have comes from the charge storage element by monitoring device consumption Electric power power consumption state switch to monitor the charge storage element when the first power consumption state and power consumption be less than first power consumption The electric power handoff functionality of second power consumption state of state, and be configured to judge that the changing value that the test section detects is It is no below electric power reduction threshold value, in the case where being judged as the changing value below the electric power reduction threshold value, will The power consumption state is switched to the second power consumption state from the first power consumption state.Thereby, it is possible to suppress monitoring device to disappear Consume the electric power from charge storage element.
In above-mentioned electrical storage device, can have the acceptance division for receiving the recovery instruction based on outside input, the control Portion is configured to receive the action for restoring instruction based on the acceptance division, performs the power consumption state from second power consumption State restoration is the restoration disposal of the first power consumption state, and thereby, it is possible to be restored to monitoring device to monitor electric power storage member The state of part.
In above-mentioned electrical storage device, the control unit is configured to, and described the is being reset into according to the recovery instruction In the case of one power consumption state, perform and be restored to the relay at the closure of the closure state from the off-state Reason, thereby, it is possible to the electric power for making charge storage element to reset into the state that can be powered to engine side.
In above-mentioned electrical storage device, the control unit is configured to, and is judged from the time of resetting into the closure state Start untill closure fiducial time terminates whether the engine is started, in the feelings for being judged as the engine and not started Under condition, the disconnection process again that the relay is switched to again to off-state is performed.
When the engine is started, can start to charge to charge storage element.But no matter whether relay is restored to close State, if the state that engine is not started continues, the electric power of charge storage element is consumed via relay by electric loading, so as to The charge volume of charge storage element may be caused to be reduced to the degree of fail to start engine.Then, the electrical storage device be judged as from It is restored to start at the time of closure state untill closure fiducial time terminates in the case that engine do not started, by relay It is switched to off-state again.Thus, no matter whether relay is restored to closure state, the shape that can not started in engine State suppresses the electric power that electric loading persistently consumes charge storage element long lasting in the case of.
In above-mentioned electrical storage device, the control unit is configured to, and is judged from the power consumption state restoration to described Start untill electric power fiducial time terminates whether the engine is started at the time of one power consumption state, be judged as the hair In the case that motivation is not started, perform reduces place again by what the power consumption state switched to the second power consumption state again Reason, thus, no matter whether control unit is restored to the first power consumption state, and the state for extended periods that can not started in engine is held In the case of continuous, the control unit for suppressing the first power consumption state persistently consumes the electric power of charge storage element.
In above-mentioned electrical storage device, the control unit is configured to, and the changing value detected according to the test section, is sentenced Whether the voltage of the disconnected charge storage element exceedes overcharge threshold value, is used in the voltage of the charge storage element more than the overcharge In the case of threshold value, perform the relay at the additives for overcharge protection that the closure state switches to the off-state Reason, thus, can also use relay in additives for overcharge protection.
The embodiment ＞ of ＜ mono-
1~Fig. 3 of reference picture illustrates an embodiment.
As shown in figure 1, the battery 1 of present embodiment is such as being mounted in engine-driven car or hybrid vehicle It is the starter battery in order to start engine 2 and be powered to starter 3 on vehicle.In addition, battery 1 is not only to starting Machine control unit（Hereinafter referred to as ECU）4 power supplies, also to the mobile units such as clock, lighting device, sound system and security system 5 Power supply.On the other hand, battery 1 is filled using the rotation by engine 2 and the electric power for making alternating current generator 6 be generated electricity Electricity.In addition, battery 1 is one of electrical storage device, ECU4 and mobile unit 5 is electric loading one.
（The structure of battery）
Battery 1 has：Battery pack 11, relay 12, cell managing device（Battery ManagementSystem, Hereinafter referred to as BMS）13rd, lead-out terminal 14.Battery pack 11 is one of charge storage element, each battery in series by multiple battery C C is the secondary cell that can be charged repeatedly, specifically, be with the ferric phosphate class lithium of negative pole formed by graphite type material from Sub- battery.It should be noted that in Fig. 1 and the following description, it is assumed that battery pack 1 has four battery C.
Starter 3, ECU4, mobile unit 5 and alternating current generator 6 are electrically connected with lead-out terminal 14.Relay 12 is set Put in the inside of battery 1, be connected electrically between battery pack 11 and lead-out terminal 14.Relay 12 passes through control unit 22 described later Switch control, switch to disconnection（Open）State and closure（Close）State.In addition, relay 12 be so-called enclosed type after Electrical equipment.That is, once relay 12 is formed as off-state or closure state according to the instruction of control unit 22, even if afterwards Stop power supply, be also able to maintain that the off-state or closure state.If relay 12 is closure state, battery 1 can Power, and can be charged using alternating current generator 6 to starter 3, ECU4 and mobile unit 5.On the other hand, if relay 12 be off-state, then battery 1 can not power to the grade of starter 3, and can not be charged using alternating current generator 6.
BMS13 has：Voltage detecting circuit 21, control unit 22, firing switch 23, communication unit 24 and four equalizing circuits （Discharge circuit）25.Voltage detecting circuit 21 is one of test section, individually detects each battery C voltage and is sent out to control unit 22 Give its testing result.It should be noted that voltage detecting circuit 21 can also be the structure of the detection global voltage of battery pack 11.Separately Outside, BMS13 can also have the current sense for detecting the electric current turned in battery pack 11 in addition to voltage detecting circuit 21 The various test sections such as device and the temperature sensor of the detection temperature of battery pack 11, and according to the testing result of above-mentioned each test section, prison Depending on the internal resistance and charged state of battery pack 11（State Of Charge, hereinafter referred to as SOC）It is various etc. battery pack 11 State.
Control unit 22 has central processing unit（Hereinafter referred to as CPU）22A and memory 22B.Control unit 22 and voltage inspection Slowdown monitoring circuit 21 utilizes the electric cranking of battery pack 11.Control unit 22 has electricity-saving function（One of electric power handoff functionality）, pass through The electricity-saving function is performed, the state that BMS13 can be consumed to the electric power from battery pack 11 switches to general mode, sleep pattern And deep sleep mode.
General mode is one of the first power consumption state, mainly the power consumption state of the BMS13 in vehicle traveling.At this Under general mode, voltage detecting circuit 21, control unit 22 and communication unit 24 are powered by battery pack 11, and BMS13 can monitor each electricity The state of the battery packs such as pond C voltage 11.
Sleep pattern is one of the first power consumption state, is the pattern that power consumption is less than general mode, and predominantly engine 2 stops The power consumption state of BMS13 when only and vehicle is in dead ship condition.Under the sleep pattern, voltage detecting circuit 21, control unit 22 and communication unit 24 also powered by battery pack 11, MBS13 can also monitor the state of battery pack 11.But in a sleep mode, Control unit 22 monitors each battery C voltage such as by reducing clock frequency, to be longer than the cycle of general mode.
Deep sleep mode is one of the second power consumption state, is the power consumption pattern lower than sleep pattern.Now, battery Any device power supply of the group 11 not into voltage detecting circuit 21, control unit 22 and communication unit 24, BMS13 can not monitor battery The state of group 11.
The various programs for controlling control unit 22 to act are stored with memory 22B（Including described later for performing The program of Electric control processing）, CPU22A is according to the program read from memory 22B, each portion of control control unit 22, storage Device 22B has RAM and ROM.It should be noted that the medium of the above-mentioned various programs of storage is in addition to RAM etc., or The nonvolatile memories such as CD-ROM, hard disk unit, flash memory.
Firing switch 23 is, for example, the electronic switches such as FET, is inputted according to the operation of user, (not shown) into control unit 22 Built-in switch sends start signal SG1.If control unit 22 receives start signal SG1, built-in switch in deep sleep Close and be powered, started again at from the power supply of battery pack 11, so as to reset into general mode or sleep pattern.In this case, Firing switch 23 is one of acceptance division, and the operation of user inputs one be an externally input.
Communication unit 24 receives aftermentioned various signal SG2~SG5 from ECU4 and sent to CPU22A.Each equalizing circuit 25 It is in parallel with each battery C respectively, there is such as switch element 25A and discharge resistance 25B.Control unit 22 is by making each equalizing circuit 25 Switch element 25A carry out closed action, can utilize discharge resistance the battery C in parallel with the equalizing circuit 25 is discharged.
（Electric control processing）
Control unit 22 receives the power supply of battery pack 11, performs the Electric control processing shown in Fig. 2A.Control unit 22 is sentenced first Whether disconnected engine 2 is in halted state（S1）.Here, ECU4 when the position of ignition switch is latched position to communication unit 24 Locking signal SG3 is sent, auxiliary signal SG4 is sent to communication unit 24 when the position of ignition switch is aided location, is lighting a fire Signal SG5 is connected in the position of switch to send igniting to communication unit 24 during igniting on-position, is in the position of ignition switch During dynamic position engine start signal SG2 is sent to communication unit 24.
Control unit 22 for example in the case where communication unit 24 receives locking signal SG3 or auxiliary signal SG4, judges engine 2 are in halted state；The situation that signal SG5 is connected in igniting is received after communication unit 24 receives engine start signal SG2 Under, judge that engine 2 is in running order.It should be noted that make engine in the vehicle for being equipped with battery 1 is traveling In the case of 2 idling stop vehicles temporarily ceased, control unit 22 is receiving the feelings that engine temporarily ceases signal from ECU4 It both may determine that under condition and be in halted state for engine 2, and can also be regarded as temporarily ceasing and being judged as in running order.
（1）The processing of engine behavior
In S1, control unit 22 is in the case where judging that engine 2 is in running order（S1：It is no）, make BMS13 power consumption State is general mode（S2）.Specifically, control unit 22 still maintains common in the case where being currently general mode Pattern, general mode is switched in the case where being currently other patterns.It should be noted that in the normal mode, relay 12 lie substantially in closure state.
Here, ECU4 is in the working condition of engine 2, it is sharp when the SOC of battery pack 11 is reduced to and starts to charge up SOC With the generating of alternating current generator 6, battery pack 11 is started to charge up, reached in SOC and stop charging SOC（About 99%）At the time of, Perform the charge control for stopping charging.As shown in figure 3, in ferric phosphate Li-like ions battery, because SOC is 75%~100% attached Near region is open-circuit voltage（Hereinafter referred to as OCV）The relatively small flat site of rate of change（Also referred to as land regions）, institute With, it is difficult to correct SOC is inferred according to OCV.In contrast, compared with above-mentioned flat site, because SOC is near 55%~70% Region be the OCV larger region of variation of rate of change, so correct SOC can be inferred according to OCV.Therefore, in this implementation In mode, start to charge up SOC and be set near 60%（The charge control region of reference picture 3）.
Control unit 22 performs additives for overcharge protection processing after the power consumption state for making BMS13 is switched to general mode（S3~ S6）.In additives for overcharge protection processing, control unit 22 judges whether at least one according to the testing result of voltage detecting circuit 21 Individual battery C battery voltage value Vc is in overcharge more than threshold value Vth2（S3）.Control unit 22 is being judged as all battery C electricity Overcharge that cell voltage value Vc is insufficient is with the case of threshold value Vth2（S3：It is no）, it is judged as that all battery C are in normal condition, Return to S1.On the other hand, control unit 22 is being judged as at least one battery C battery voltage value Vc in overcharge threshold value In the case of more than Vth2（S3：It is）, it is judged as that battery C is in overcharge condition, so as to perform next additives for overcharge protection Action（S4~S6）.
Relay 12 is switched to off-state by control unit 22（S4）, stop the charging using alternating current generator 6, carry out equal Weighing apparatus acts（S5）.Control unit 22 makes the switch element for the equalizing circuit 25 connected with being judged as the battery C in overcharge condition 25A carries out closed action, and battery C battery voltage value Vc is reduced into the battery voltage value Vc identicals with other battery C It is horizontal.
Control unit 22 performs the restoration disposal for making relay 12 reset into closure state after balancing actions are completed（S6）And Return to S1.Thus, relay 12 can be also used in additives for overcharge protection.It should be noted that it is preferred that ECU4 is in relay During device 12 is off, controls and the electric power of alternating current generator 6 is supplied to mobile unit 5 etc..In addition, control unit 22 can To perform balancing actions in S4 before processing（S5）, or balancing actions can not also be performed（S5）.
（2）Processing during engine stop-state
In S1, control unit 22 is in the case where being judged as that engine 2 is in halted state（S1：It is）, make BMS13 consumption Electricity condition is switched to sleep pattern（S7）.Specifically, control unit 22 is still tieed up in the case where being currently sleep pattern Sleep pattern is held, sleep pattern is switched in the case where being currently other patterns.In addition, even if in a sleep state, relay Device 12 also lies substantially in closure state.Thus, the power supply from battery pack 11 to the grade of mobile unit 5 is maintained, but on the other hand, Because battery pack 11 is not electrically charged, due to self discharge, BMS13 power consumption and mobile unit etc. power consumption or dark current and SOC is caused to reduce.
It should be noted that now, because engine 2 stops, BMS13 is in sleep pattern, so battery C battery electricity Pressure value Vc is relative to change smaller, substantially directly proportional to OCV value.Therefore, control unit 22 can be according to each battery C battery Magnitude of voltage Vc, thus it is speculated that each battery C OCV and SOC.
Control unit 22 is after the power consumption state for making BMS13 is switched to sleep pattern, according to the detection of voltage detecting circuit 21 As a result, judge whether at least one battery C battery voltage value Vc in power saving threshold value Vth1（Electric power reduction threshold value and disconnected Open one with threshold value）Below（S8）.Power saving threshold value Vth1 is the value that lower threshold Vth3 is started more than engine, specifically Say, be to start the value after setting is added on lower threshold Vth3 in engine.The engine start lower threshold Vth3 be with The SOC of engine 2 threshold level can be started（Lower limit SOC）Corresponding OCV values.In addition, setting be, for example, less than 1.0V, Value less than 0.5V or less than 0.1V.
In addition, control unit 22 can judge whether below power saving threshold value Vth1 to all battery C cell voltage Vc, Only cell voltage minimum in all battery C cell voltage Vc can also be judged whether below power saving threshold value Vth1. In addition, control unit 22 can also judge whether at least one battery C battery voltage value Vc in power saving threshold value Vth1 and hair Between engine start lower threshold Vth3.And then in S8, control unit 22 can not be the electricity for judging each battery C Cell voltage value Vc, but judge the total voltage value of battery pack 11（All battery C battery voltage value Vc total value）Whether disconnected Open with below threshold value.
As shown in figure 3, in ferric phosphate Li-like ions battery, the region of engine can be started（SOC be 20%~ 100%）Interior, SOC is that the region near 40%~50% is flat site, and SOC is change for the region near 20%~35% Region.It is therefore preferable that power saving is set in the region of variation with threshold value Vth1.In the present embodiment, power saving threshold value Vth1 is set as OCV values when SOC is near 30%（About 3.28V）.Below, SOC now is referred to as power saving SOC.
In S8, control unit 22 is higher than power saving threshold value Vth1 situation in the battery voltage value Vc for judging all battery C Under（S8：It is no）, it is judged as that all battery C SOC is still within fully starting the level of engine 2, returns to S1.It is another Aspect, control unit 22 is in the case where judging at least one battery C battery voltage value Vc below power saving threshold value Vth1 （S8：It is）, it is judged as that battery C SOC moves closer to the lower limit SOC in fail to start engine 2, relay 12 is switched to Off-state, by the way that BMS13 power consumption state is switched into deep sleep mode（S9）So that battery pack 11 is no longer to control unit 22 and communication unit 24 power.
It should be noted that in S9, relay 12 is switched to the opportunity of off-state and the power consumption state by BMS13 The opportunity for being switched to deep sleep mode can be consistent, can also be inconsistent.For example, control unit 22 can be cut by relay 12 After changing to off-state, BMS13 power consumption state is switched to deep sleep mode.
Thus, the power supply from battery pack 11 to the grade of mobile unit 5 is stopped, even if but with battery voltage value Vc in power saving The situation for also not performing S9 processing with below threshold value Vth1 is compared, and can suppress the power consumption of battery pack 11, makes battery C's SOC close to lower limit SOC time delay, will all battery C SOC for a long time maintain the region that can start engine It is interior, exhausted so as to suppress battery power.
In addition, as described above, because ECU4 performs above-mentioned charge control, in vehicle travel process, battery pack 11 SOC be not to be always maintained near 100%, sometimes engine 2 just stop after, SOC is had already decreased near 60%（Ginseng According to Fig. 3 parking time domain）.Therefore, with vehicle travel process ECU4 battery pack 11 is charged always until full state Situation compare, the battery 1 of present embodiment is especially effective.
Herein, it is assumed for example that because self discharge causes the electric current scaled value of power consumption to be about 1mA/day, BMS13 sleeps battery pack 11 The electric current scaled value that the electric current scaled value of power consumption during sleep mode is about 1mA/day, the power consumption of mobile unit 5 etc. is about 15mA/ Day, and SOC when engine 2 starts to stop is 60%, and SOC corresponding with power saving threshold value Vth1 is 30%, and lower limit SOC is 20%.In the case where not performing S9, stopped to the about the 47th day from engine 2, battery C SOC is reduced to lower limit SOC.Therewith Relatively, in this case, since when engine 2 stops, about at the 35th day, S9 processing is performed, afterwards, At the about the 114th day, battery C SOC was reduced to lower limit SOC, i.e., in this example, compared with not performing the S9 situation of processing, The situation of present embodiment can make battery C SOC more than about 100 days close to lower limit SOC time delay.
It should be noted that in ferric phosphate Li-like ions battery, if battery C SOC is in fail to start engine Region（As one, SOC is 0%~20%）Interior, then battery power exhausts, if SOC further drops to about less than 0, Then it is likely to become the state that can not be reused.In addition, above-mentioned S8, S9 processing reduce processing for disconnection process and electric power One.It should be noted that the SOC in the region Deng Ge regions of fail to start engine is also because of the difference of vehicle and environment and It is different.
Control unit 22 because deep sleep mode without being powered after, if to firing switch 23 carry out closed procedure, Then control unit 22 turns into "on" position, and battery pack 11, which starts again at, powers and perform the start up process shown in Fig. 2 B.Driver couple It is high that the firing switch 23 of battery 1 performs the possibility that closed procedure means that the horse back of engine 2 is started.Therefore, control unit Relay 12 is restored to closure state by 22, is sleep pattern by BMS13 power consumption state restoration（S11）.
In addition, in S11, relay 12 is restored to the opportunity of closure state with being by BMS13 power consumption state restoration The time of sleep pattern can be consistent, can also be inconsistent.For example, control unit 22 can be by BMS13 power consumption state restoration To after sleep pattern, relay 12 is reset into closure state.
By carrying out S11 processing, it can be ready to start to start engine 2, the electric power of battery pack 11 is reset into Can be to the state of the grade power supply of mobile unit 5, and BMS13 can be reset into the state that can monitor battery pack 11.That is, BMS13 indicates to monitor that can reset into when the deep sleep of battery pack 11 is not monitored by being given to restore Sleep pattern of battery pack 11 etc..Therefore, make BMS13 be deep sleep when parking, perform the control for suppressing power consumption Special problem is not had.
Afterwards, since control unit 22 is judged resetting into the moment such as sleep pattern to stand-by time（Close fiducial time and One of electric power fiducial time）Whether engine 2 is started untill end（S12）.Control unit 22 terminates in above-mentioned stand-by time Before, in the case where receiving engine start signal SG2, it is judged as that engine 2 is started（S12：It is）, so as to return to figure 2A S1, into S2.Thus, battery pack 11 is charged using alternating current generator machine 6.
On the other hand, control unit 22 does not receive engine start signal SG2 situation yet after stand-by time terminates Under, it is judged as the unstart of engine 2（S12：It is no）, so that relay 12 is in off-state again, make BMS13 power consumption state Again switch to deep sleep mode（S13）.Thus, no matter whether relay 12 resets into closure state, can start In the case that the state for extended periods of machine unstart continues, suppress mobile unit 5 and BMS13 persistently consume battery pack 11 electric power and The situation of battery short of electricity is caused to occur.
（The effect of present embodiment）
According to present embodiment, battery 1 internally not only has battery pack 11, also with relay 12 and BMS13, and And the switching action of BMS13 control relays 12.Therefore, battery 11 can just press down by oneself independent of the system of vehicle side Battery short of electricity processed.In addition, compared with relay 12 is arranged on vehicle side without the structure that is provided in inside battery 1, energy Enough suppress due to communication mistake of battery 1 and vehicle side system etc. and cause can not control relay 12 situation hair It is raw.
＜ other embodiments ＞
Technology disclosed in the present application is not limited to the embodiment illustrated by based on foregoing description and accompanying drawing, such as can also Including various modes as described below.
" charge storage element " is not limited to the form of multiple battery series connection, or multiple cell parallels, and can be appropriate Change cell number.In addition, " charge storage element " is not limited to battery pack 11 or monocell.In addition, " charge storage element " is not limited to Other are non-for ferric phosphate Li-like ions battery or manganese Li-like ions battery with the negative pole formed by graphite type material etc. Water-Electrolyte secondary cell, or other lead accumulators in addition to rechargeable nonaqueous electrolytic battery or Ni-MH battery etc..Also, " charge storage element " is not limited to secondary cell or capacitor.In addition, " charge storage element " is not limited to vehicle, as long as aircraft Or equipment etc. is by engine（Internal combustion engine etc.）The battery for being used to start engine as the equipment of driving source.
" the second power consumption state " can also be battery pack 11 into voltage detecting circuit 21, control unit 22 and communication unit 24 At least state of any one device power supply, for example, above-mentioned deep sleep mode can be power to control unit 22 and communication unit 24 and The state do not powered to voltage detecting circuit 21.In this case, control unit 22 is configured to, and makes battery C voltage monitoring And the function stop such as switch control of relay 12, and it is merely able to whether receive communication unit 24 the signal input from outside Judged, be sleep pattern or common by BMS13 power consumption state restoration in the case where being judged as receiving signal input Pattern.
Specifically, ECU4 is powered from the power supply with the split settings of battery pack 11, is disconnected even if being in relay 12 State can be also exported to control unit 22 in the case that igniting connects the signals such as signal SG5, and control unit 22 is connect receiving igniting During messenger SG5, it can interpolate that and restore instruction to have been received by.Ignition switch is located at igniting on-position by driver, meaning Taste the possibility height for starting engine 2 at once.It should be noted that in the structure shown here, communication unit 24 is one of acceptance division, It is not limited by wire communication and receives the structure for restoring instruction, or the structure received by radio communication.For example, The electric wave that communication unit 24 is configured to switch by receiving the remote control held from driver restores instruction to receive.Separately Outside, control unit 22 can also be judged as having been received by recovery instruction when receiving auxiliary signal SG4.
In addition, if it is the said structure powered in deepsleep mode to control unit 22 and communication unit 24, then, In S9, relay 12 can be switched to disconnection by control unit 22 after BMS13 power consumption state is switched into deep sleep mode State.Moreover, in S11, control unit 22 can also be after closure state be restored to, by BMS13 power consumption shape by relay 12 State resets into sleep pattern or general mode.
Also, in the said structure powered in deepsleep mode to control unit 22 and communication unit 24, with control unit 22 Situation when signal SG5 and auxiliary signal SG4 is connected in igniting is received to compare, when control unit 22 receives start signal SG1 Stand-by time can be set as the long period.Because in the case where receiving start signal SG1, driver is to electric power storage The firing switch 23 in pond 1 returns to driver's seat from the allocation position of the battery 1 of vehicle after carrying out closed procedure and makes ignition switch The time is needed located at start position.
As described above, " acceptance division " is configured to receive based on the signal input from the outside of communication unit 24 etc Instruction is restored, can also be configured to receive the recovery instruction of the manual operation input based on firing switch 23 etc.Firing switch 23 can be mechanical switch, be inputted by the operation of user to switch to closure state from off-state.Control unit 22 starts When switch 23 turns into closure state, start again at the power supply from battery pack 11, and reset into general mode or sleep pattern.
In the above-described embodiment, one as " control unit ", it is with the control unit 22 with a CPU and memory Example is illustrated.But " control unit " not limited to this, can be the structure with multiple CPU, or there is ASIC （Application Specific Integrated Circuit, application specific integrated circuit）Deng the structure of hardware circuit, or tool There are hardware circuit and CPU structure.Such as " control unit " can be that the one of voltage control process is performed in CPU or hardware circuit All or part of structure.Alternatively, it is also possible to suitably change Fig. 2A, the order of 2B each processing.
" electric power reduction threshold value " and " disconnection threshold value " is in the above-described embodiment shared power saving threshold value Vth1, But not limited to this, " electric power reduction threshold value " can be different values from " disconnection threshold value ".I.e. in S8, S9, control unit 22 except by each battery C battery voltage value Vc and power saving with threshold value Vth1 relatively in addition to, will also be compared with disconnection threshold value. Also, control unit 22 is configured to, feelings of any battery C battery voltage value Vc below power saving threshold value Vth1 are being judged Under condition, deep sleep mode is switched to；Judging situations of any battery C battery voltage value Vc below disconnection threshold value Under, relay 12 is switched into off-state.
" closure fiducial time " is in the above-described embodiment shared stand-by time with " electric power fiducial time ", but not It is limited to this, " closure fiducial time " can be the different time from " electric power fiducial time ".I.e. in S12, S13, control unit 22 May determine that since being reset into the moment such as sleep pattern elapsed time whether be the first stand-by time different from each other and Second stand-by time.Also, control unit 22 can make in the case where engine untill the first stand-by time terminates is not started Relay 12 is in off-state again, in the case where engine untill the second stand-by time terminates is not started, makes BMS13's Power consumption state is again at deep sleep mode.
Control unit 22 can judge whether engine is to stop shape in S1 according to the voltage or current value of battery pack 11 State.For example, control unit 22 can be worth on the basis of the magnitude of voltage variable quantity of battery pack 11 is determined following state continue for it is pre- During the fixed stipulated time, it is judged as that engine 2 is in halted state.
In the above-described embodiment, control unit 22 is in S8 processing etc., according to battery C magnitude of voltage Vc perform on The structure of SOC judgement.But not limited to this, control unit 22 for example can tire out according to the electric current for temporally adding up charging and discharging currents Metering etc. has the changing factor of dependency relation with SOC, performs the judgement on SOC.In a word, if control unit 22 according to electricity Changing value corresponding to the charge volume of pond group 11 performs S8 processing etc..
Control unit 22 can not enter deep sleep in S9, and such structure can also suppress BMS13 consumption battery packs 11 electric power.

Claims (8)

1. a kind of electrical storage device, it is characterised in that have：
The lead-out terminal electrically connected with the equipment side of mobile unit and engine, the equipment side of the engine include starter And alternating current generator；
Charge storage element；
With the test section for detecting changing value corresponding with the charge volume of the charge storage element and the monitoring device of control unit；
The relay being arranged between the lead-out terminal and the charge storage element；
Whether the control unit is configured to, judge changing value that the test section detects for starting the hair of the engine On engine start lower threshold be added setting after disconnection threshold value below, when be judged as the changing value it is described disconnect use When below threshold value, the disconnection process that the relay is switched to off-state from closure state is performed.
2. electrical storage device as claimed in claim 1, it is characterised in that
There is the control unit power consumption state that the monitoring device is consumed to the electric power from the charge storage element to be switched to prison The first power consumption state and power consumption when surveying the charge storage element are less than the electric power of the second power consumption state of the first power consumption state Handoff functionality,
The control unit is configured to, judge the changing value that the test section detects whether electric power reduction threshold value with Under, when being judged as that the changing value is below the electric power reduction threshold value, perform the power consumption state from described first Power consumption state is switched to the electric power reduction processing of the second power consumption state.
3. electrical storage device as claimed in claim 2, it is characterised in that
With acceptance division, the acceptance division receives the recovery instruction based on outside input；
The control unit is configured to, and receives the action for restoring instruction based on the acceptance division, performs the power consumption state From the second power consumption state restoration to the restoration disposal of the first power consumption state.
4. electrical storage device as claimed in claim 3, it is characterised in that
The control unit is configured to, according to it is described recovery instruction reset into the first power consumption state in the case of, perform general The relay resets into the closure processing of the closure state from the off-state.
5. electrical storage device as claimed in claim 4, it is characterised in that
The control unit is configured to, and judges since at the time of resetting into the closure state untill closure fiducial time terminates Whether the engine is started, and when being judged as that the engine is not started, is performed the relay being switched to and is broken again The disconnection process again of open state.
6. the electrical storage device as any one of claim 3 to 5, it is characterised in that
The control unit is configured to, and judges since at the time of the power consumption state restoration is to the first power consumption state to electric power Whether the engine is started untill fiducial time terminates, and when being judged as that the engine is not started, is performed by described in What power consumption state again switched to the second power consumption state reduces processing again.
7. the electrical storage device as any one of claim 1 to 5, it is characterised in that the control unit is configured to, according to institute The changing value that test section detects is stated, judges whether the voltage of the charge storage element exceedes overcharge threshold value, when the electric power storage When the voltage of element exceedes the overcharge threshold value, perform and the relay is switched to the disconnection from the closure state The additives for overcharge protection processing of state.
8. electrical storage device as claimed in claim 6, it is characterised in that the control unit is configured to, and is examined according to the test section The changing value measured, judges whether the voltage of the charge storage element exceedes overcharge threshold value, when the voltage of the charge storage element During more than the overcharge threshold value, perform and the relay is switched to overcharging for the off-state from the closure state Electric protection is handled.
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